Hepatitis

Question 1

HepBsAg +

Anti-HBs -

Answer 1

Infected

Question 2

HepBsAg -

Anti-HBs +

Answer 2

Immune due to vaccine

Question 3

Hepatitis B e antigen (HBeAg)

Answer 3

Marker of HBV replication and infectivity.

Presence is associated with high levels of HBV DNA in serum and higher rates of vertical transmission

Question 4

Risk of vertical transmission Hep B?

Answer 4

From HBsAg + mothers to infants is as high as 90% without active (vax) and passive (HBIG) immunization

Question 5

Maternal screening:

Answer 5

Testing for HBsAg should be performed on all women at the first prenatal visit

Question 6

The principal risk factors for HCV transmission?

Answer 6

IV drug abuse

Blood transfusion

Question 7

Risk of vertical transmission Hep C?

Answer 7

5%

25% when co-infection with HIV